18900022

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1776

約数の個数: 24

約数和(自身を含む): 31719240

約数和(自身を除く): 12819218

約数列:

[1, 2, 17, 19, 34, 38, 289, 323, 578, 646, 1721, 3442, 5491, 10982, 29257, 32699, 58514, 65398, 497369, 555883, 994738, 1111766, 9450011, 18900022]

約数ペア:

[(1, 18900022), (2, 9450011), (17, 1111766), (19, 994738), (34, 555883), (38, 497369), (289, 65398), (323, 58514), (578, 32699), (646, 29257), (1721, 10982), (3442, 5491)]